… The biggest Hive deployment to date is the silver cluster at Facebook Inc, which consists of 1100 nodes with 8 CPU cores and 12 1TB-disk each. This turns into a cluster of 8800 CPU cores and 13PB of raw storage. Hive does not mandate read or written data be in the "Hive format"---there is no such thing. Hive works equally well on Thrift, control delimited, or your specialized data formats. Please see File Format and SerDe in Developer Guide for details. http://wiki.apache.org/hadoop/Hive
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